Never seen that one, I suppose we were lucky enough not be there while they were bastardizing that one... or if we were there we didn't ride it but Jungle Cruise isn't a ride we feel compelled to ride so if the lines are long we always skip it.
The only thing in the entire park that wasn't pristine and in perfect condition was Roaring Rapids that was closed for months at a time because they couldn't get the Qaraq (Croc) working.
My guess is most of the maintenance issues will be lighting related. There's a ton of lighting on the train, the canopy, the que... All over the place. And I'm guessing it might be an issue. Also in the que the frosted glass effect. I could see that being a problem too, being within arm's reach of guests. Americans just can't leave cool stuff alone. They have to mess with it all. The Asian parks don't have that problem.